Stepper motor control system

Details Stepper motor control system Stepper motor control system

1983-12-03

1987-02-03

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318 685, H02P 800

Patent

active

046410732

ABSTRACT:
A stepper motor control system for rotating a stepper motor by a desired amount of movement, including a first ROM (ROM.sub.3) for storing acceleration control data, a second ROM (ROM.sub.4) for storing deceleration control data and a change point control circuit for controlling a change point period between acceleration and deceleration. The change point control circuit assures that the acceleration is smoothly joined to the deceleration through the change point period so that the rotor of the stepper motor stops instantly and accurately at the target position.

REFERENCES:
patent: 4156170 (1979-05-01), Strumc
patent: 4280084 (1981-07-01), Chiang
IBM Technical Disclosure Bulletin, "Adaptive Step Motor Control Circuit", pp. 3681-3682, vol. 22, No. 8B, Jan. 1980.
IBM Technical Disclosure Bulletin, "Table Splitting for Stepper Motor Control", p. 3052, vol. 22, No. 8A, Jan. 1980.
European Search Report, Berlin, Nov. 20, 1984, examiner: Gessner.
IBM Tech. Dis. Bul., vol. 12, #7, 1969, p. 1032.
IBM Tech. Bul., vol. 4, #6, pp. 10-11, 1961.
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IBM Journal, Jan. 1968, pp. 34-40.
IBM Tech. Dis. Bul., vol. 13, #5, p. 1149, 1970.
IBM Tech. Dis. Bul., vol. 1, #4, p. 44, 1958.

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